*331051* (Battery) Rider Scrubber English EN Operator Manual Rev. 05 ( ) To view, print or download the latest manual, visit:

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1 T7 (Battery) Rider Scrubber English EN Operator Manual To view, print or download the latest manual, visit: Rev. 05 ( ) *331051*

2 INTRODUCTION This manual is furnished with each new model. It provides necessary operation and maintenance instructions. Read this manual completely and understand the machine before operating or servicing it. This machine will provide excellent service. However, the best results will be obtained at minimum costs if: The machine is operated with reasonable care. The machine is maintained regularly - per the machine maintenance instructions provided. The machine is maintained with manufacturer supplied or equivalent parts. PROTECT THE ENVIRONMENT Please dispose of packaging materials, used components such as batteries and fluids in an environmentally safe way according to local waste disposal regulations. Always remember to recycle. MACHINE DATA Please fill out at time of installation for future reference. Model No. Serial No. Installation Date INTENDED USE The T7 is an industrial/commercial rider machine designed to wet scrub both rough and smooth hard surfaces (concrete, tile, stone, synthetic, etc). Typical applications include schools, hospitals / health care facilities, office buildings, and retail centers. Do not use this machine on soil, grass, artificial turf, or carpeted surfaces. This machine is intended for indoor use only. This machine is not intended for use on public roadways. Do not use this machine other than described in this Operator Manual. Tennant N.V. Industrielaan AB P.O. Box AA Uden The Netherlands europe@tennantco.com Specifications and parts are subject to change without notice. Original instructions, copyright , 2013 Tennant Company, Printed in The Netherlands. All rights reserved. DECLARATION OF CONFORMITY FOR MACHINERY (according to Annex II A of the Machinery Directive) TENNANT N.V. Industrielaan AB P.O. Box AA Uden The Netherlands Uden, EN Herewith declares, on our own responsibility, that the machinery T7 is in conformity with the provisions of the Machinery Directive (2006/42/EC), as amended and with national implementing legislation is in conformity with the provisions of the Electro Magnetic Compatibility Directive 2004/108/EC and that the following harmonized standards or parts of these standards have been applied: EN ISO , EN 1037, EN , EN , EN ISO , EN ISO , EN 60529, EN ISO 4413, EN 349, EN 55012, EN , EN ISO 11201, EN ISO 4871, EN ISO 3744*, EN ISO 13059*, EN ISO 3450, EN the following national standards or parts of these standards have been used:

3 CONTENTS CONTENTS Page Safety Precautions... 2 Operation... 5 Machine Components... 5 Controls And Instruments... 6 How The Machine Works... 7 Conventional Scrubbing... 7 Foam Scrubbing System (FaST Model)... 7 ec H2O Scrubbing (ec H2O Model)... 8 Brush Information... 8 Machine Setup... 9 Attaching Squeegee Assembly... 9 Installing Brushes/Pads... 9 Installing The FaST PAK (FaST Model).. 9 Filling The Solution Tank Machine Operation Pre Operation Checklist Before Operating Setting Scrub Modes Setting FaST Button Setting ec H2O Button Setting Brush Pressure Setting Solution Flow (Conventional Scrubbing Only) Economy Setting Scrubbing Double Scrubbing Water Pickup Mode (No Scrubbing) While Operating The Machine Emergency Stop Button Hour Meter ec H2O System Indicator Light Solution Tank Empty Indicator Recovery Tank Full Indicator Battery Discharge Indicator Fault Indicator Circuit Breakers Fuses Hazard Light Switch (Option) Draining And Cleaning The Tanks Propel System Troubleshooting Machine Troubleshooting Maintenance Maintenance Chart Batteries Checking The Electrolyte Level (Wet / Lead Acid Batteries Only) Checking Connections / Cleaning Gel Batteries Charging The Batteries With Off Board Charger Electric Motors Belts (Cylindrical Models) Page Scrub Brushes And Pads Disk Brushes Replacing Disk Brushes Or Pad Driver Replacing Disk Pads Cylindrical Brushes Replacing Or Rotating Cylindrical Brushes 32 Checking Cylindrical Brush Pattern Adjusting Cylindrical Brush Taper Adjusting Cylindrical Brush Width FaST System Maintenance (FaST Model) 35 FaST Supply Hose Connector ec H2O System (ec H2O Model) ec H2O Module Flush Procedure Squeegee Blades Replacing (Or Rotating) The Rear Squeegee Blades Replacing Side Squeegee Blades Adjusting The Squeegee Guide Roller Leveling The Rear Squeegee Adjusting Rear Squeegee Blade Deflection Skirts And Seals Disk Scrub Head Floor Skirt Recovery Tank Seal Solution Tank Seals Tires Pushing, Towing, And Transporting The Machine Pushing Or Towing The Machine Transporting The Machine Machine Jacking Storage Information Freeze Protection ec H2O Model: Flushing Antifreeze From ec H2O Module: Specifications General Machine Dimensions/Capacities. 45 General Machine Performance Power Type Tires FaST System (Option) ec H2O System (Option) Machine Dimensions T (9 2013) 1

4 SAFETY PRECAUTIONS IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS The following symbols are used throughout this manual as indicated in the descriptions: WARNING: To warn of hazards or unsafe practices that could result in severe personal injury or death. FOR SAFETY: To identify actions that must be followed for safe operation of equipment. The following information signals potentially dangerous conditions to the operator. Know when these conditions can exist. Locate all safety devices on the machine. Report machine damage or faulty operation immediately. WARNING: Batteries emit hydrogen gas. Explosion or fire can result. Keep sparks and open flame away. Keep covers open when charging. WARNING: Flammable materials can cause an explosion or fire. Do not use flammable materials in tank(s). WARNING: Flammable materials or reactive metals can cause an explosion or fire. Do not pick up. FOR SAFETY: 1. Do not operate machine: Unless trained and authorized. Unless operator manual is read and understood. Under the influence of alcohol or drugs While using a cell phone or other types of electronic devices Unless mentally and physically capable of following machine instructions. With brake disabled. If it is not in proper operating condition. In areas where flammable vapors/liquids or combustible dusts are present. In areas that are too dark to safely see the controls or operate the machine unless operating / headlights are turned on. In areas with possible falling objects unless equipped with overhead guard. 2. Before starting machine: Check machine for fluid leaks. Make sure all safety devices are in place and operate properly. Check brakes and steering for proper operation. Adjust seat and fasten seat belt (if equipped). 3. When using machine: Use only as described in this manual. Use brakes to stop machine. Go slowly on inclines and slippery surfaces. Reduce speed when turning. Keep all parts of body inside operator station while machine is moving. Use care when reversing machine. Never allow children to play on or around machine. Do not carry passengers on machine. Always follow safety and traffic rules. Report machine damage or faulty operation immediately. Follow mixing, handling and disposal instructions on chemical containers. Follow site safety guidelines concerning wet floors. 2 T (9 2013)

5 SAFETY PRECAUTIONS 4. Before leaving or servicing machine: Stop on level surface. Turn off machine and remove key. 5. When servicing machine: All work must be done with sufficient lighting and visibility. Avoid moving parts. Do not wear loose clothing, jewelry and secure long hair. Block machine tires before jacking machine up. Jack machine up at designated locations only. Support machine with jack stands. Use hoist or jack that will support the weight of the machine. Do not push or tow the machine on inclines with the brake disabled. Do not power spray or hose off machine near electrical components. Disconnect battery connections before working on machine. Avoid contact with battery acid. Battery installation must be done by trained personnel. All repairs must be performed by a trained service mechanic. Do not modify the machine from its original design. Use Tennant supplied or approved replacement parts. Wear personal protective equipment as needed and where recommended in this manual. 6. When loading/unloading machine onto/off truck or trailer. Drain tanks before loading machine. Lower scrub head and squeegee before tying down machine. Turn off machine and remove key. Use ramp, truck or trailer that will support the weight of the machine and operator. Use winch. Do not push the machine onto/off the truck or trailer unless the load height is 380 mm (15 in) or less from the ground. Block machine tires. Tie machine down to truck or trailer. For Safety: wear hearing protection. For Safety: wear protective gloves. For Safety: wear eye protection. For Safety: wear protective dust mask. T (9 2013) 3

6 SAFETY PRECAUTIONS The safety labels appear on the machine in the locations indicated. If these or any label becomes damaged or illegible, install a new label in its place. WARNING LABEL Batteries emit hydrogen gas. Explosion or fire can result. Keep sparks and open flame away. Keep covers open when charging WARNING LABEL Flammable materials can cause explosion or fire. Do not use flammable materials in tank Located on the seat panel. Located on the seat panel. FOR SAFETY LABEL Read manual before operating machine. Located on the seat panel. WARNING LABEL Flammable materials or reactive metals can cause explosion or fire. Do not pick up. FOR SAFETY LABEL Electrical components, use grounding strap before opening panel. Located under the solution fill port and next to the foot pedals. Located on electrical panel under the seat. 4 T (9 2013)

7 OPERATION OPERATION MACHINE COMPONENTS B D I P C Q E R S J U A T K G H O M N F L A. Recovery tank drain hose B. Recovery tank cover C. Recovery tank D. Operator seat E. Batteries F. Rear squeegee G. Side squeegee H. Scrub head I. Steering wheel J. Solution tank K. Tool Box or optional FaST PAK compartment ec H2O System Module (option) L. Solution tank fill cap M. Solution tank drain hose N. Squeegee hose O. Front solution tank cover P. Hour meter Q. Circuit breakers R. 100 A Fuse S. Battery charging connector T. Propel pedal U. Brake pedal T (03 09) 5

8 OPERATION CONTROLS AND INSTRUMENTS A B C D ec H2O Model K M O Q J F E H I G L N P A. Solution tank empty indicator B. Recovery tank full indicator C. Battery charge level indicators D. Fault indicator E. Emergency Stop Button F. Directional switch G. Horn button H. On/Off key switch I. One Step scrub button J. FaST button (option) ec H2O button (option) K. ec H2O system indicator light (option) L. Vacuum fan / squeegee button M. Brush Pressure increase button (+) N. Brush Pressure decrease button ( ) O. Solution increase button (+) P. Solution decrease button ( ) Q. Control panel cover 6 T (03 09)

9 OPERATION HOW THE MACHINE WORKS CONVENTIONAL SCRUBBING Water and detergent from the solution tank flow to the floor through a solution valve. The brushes use the detergent and water solution to scrub the floor clean. As the machine propels forward, the squeegee wipes the dirty solution from the floor. The suction created by the vacuum fan then draws the dirty solution from the squeegee into the recovery tank. FOAM SCRUBBING SYSTEM (FaST MODEL) The scrub components of the machine are a solution tank, scrub brushes or pads, a squeegee, a vacuum fan, and a recovery tank. The buttons on the control panel control the machine scrubbing functions. The One Step Scrub button turns the preset scrub functions on and off. The FaST button (option) enables the FaST (Foam Scrubbing Technology) system. The ec H2O button (option) enables the ec H2O (electrically converted water) system. The vacuum fan / squeegee button turns the vacuum fan on/off and raises and lowers the squeegee. The brush pressure buttons control the scrub brush pressure, and the solution buttons control the solution flow. The steering wheel controls the path of the machine travel. The directional switch controls the forward or reverse direction of the machine. The propel pedal controls the speed of the machine. The brake pedal slows and stops the machine. There are two different types of scrub heads available, cylindrical and disk. Both scrub heads are available in two different widths. The Disk scrub head is available in 650 mm wide and 800 mm wide. The Cylindrical scrub head is available in 700 mm wide and 800 mm wide. NOTE: The amount and type of soilage play an important role in determining the type of brushes or pads to use. For specific recommendations, see the BRUSH INFORMATION section of this manual or contact a Tennant representative. Unlike conventional scrubbing, the optional FaST (Foam Scrubbing Technology) system operates by injecting the FaST PAK concentrate agent into the system with a small amount of water and air. This mixture creates a large volume of expanded wet foam. The expanded foam mixture is then dispersed onto the floor while the machine is scrubbing. When the squeegee picks up the mixture, the patented foaming agent has collapsed and is recovered into the recovery tank. The FaST system can be used with all double scrubbing and heavy duty scrubbing applications. Using the FaST system improves safety and can increase productivity by 30% by reducing your dump/fill cycle. It will also reduce chemical usage and storage space. One FaST PAK of concentrated agent can scrub up to 90,000 m 2. NOTE: Do not use the FaST system with conventional cleaning detergents in the solution tank. Drain, rinse and refill the solution tank with clear cool water before operating the FaST system. Conventional cleaning detergents may cause failure to the FaST system. T (9 2013) 7

10 OPERATION ec H2O SCRUBBING (ec H2O Model) The ec H2O (electrically converted water) system operates by producing electrically converted water for cleaning. Normal water passes through a module where it is oxygenated and charged with an electric current. The electrically converted water changes into a blended acidic and alkaline solution forming a neutral ph cleaner. The converted water attacks the dirt, breaks it into smaller particles, and pulls it off the floor surface allowing the machine to easily scrub away the suspended soil. The converted water then returns to normal water in the recovery tank. The ec H2O system can be used with all double scrubbing applications. NOTE: Do not enable the ec H2O system with conventional cleaning detergents in the solution tank. Drain, raise and refill the solution tank with clear cool water only before operating the ec H2O system. Conventional cleaning detergents/ restorers may cause failure to the ec H2O solution system. NOTE: Storage or transporting machines equipped with ec H2O in freezing temperatures requires special procedures. Follow the freeze protection procedure located in the STORAGE INFORMATION section. BRUSH INFORMATION For best results, use the correct brush type for the cleaning application. The following are recommended brush applications. Non-scuff polypropylene brush (Cylindrical and Disk) This brush uses a softer, general purpose polypropylene bristle to lift lightly compacted soilage without scuffing high-gloss coated floors. Nylon brush (Cylindrical and Disk) Softer nylon bristles are recommended for scrubbing coated floors. Cleans without scuffing Super abrasive bristle brush (Cylindrical and Disk) Nylon fiber impregnated with abrasive grit to remove stains and soilage. Strong action on any surface. Performs well on buildup, grease, or tire marks. Surface preparation pad This maroon pad is for very aggressive floor stripping. Heavy duty stripping pad This black pad is for stripping floors. Cuts through old heavy finishes easier to prepare the floor for recoating. Stripping pad This brown pad is for stripping floors. Quickly and easily cuts through old finish to prepare the floor for recoating. Scrubbing pad This blue pad is for scrubbing floors. Removes dirt, spills, and scuffs. Leaves a clean surface ready for recoating. Buffing pad This red pad is for buffing floors. Quickly cleans and removes scuff marks while polishing the floor to a high gloss. Polishing pad This white pad is for polishing floors. Maintains a high gloss. Use for buffing very soft finishes and lower traffic areas, and polishing soft waxes on wood floors. 8 T (03 09)

11 OPERATION MACHINE SETUP ATTACHING SQUEEGEE ASSEMBLY 1. Stop machine on a level surface. 2. Turn the machine ON/OFF key switch off. machine, stop on level surface, turn off machine, and remove key. 3. Place the rear squeegee under the squeegee mount bracket and fasten with the two knobs. 4. Connect the vacuum hose to the squeegee assembly. Loop the hose as shown using the hose clip provided. 4. Squeeze the button on the FaST supply hose connector, then pull the empty FaST PAK out from the compartment. The squeegee deflection is set at the factory. If the squeegee blade needs adjustments, see ADJUSTING REAR SQUEEGEE BLADE DEFLECTION section of this manual. INSTALLING BRUSHES/PADS To install the brushes or pad, see REPLACING DISK SCRUB BRUSHES OR PAD DRIVER or REPLACING CYLINDRICAL SCRUB BRUSHES section of this manual. INSTALLING THE FaST PAK (FaST Model) 1. Stop machine on a level surface. 2. Turn off the machine ON/OFF key switch. machine, stop on level surface, turn off machine, and remove key. 3. Open the FaST PAK compartment door and slide the empty FaST PAK approximately half way out from the FaST PAK compartment door. 5. Remove the perforated knock outs from the new FaST PAK carton. Do Not remove the bag from the carton. Pull out the hose connector located on the bottom of the bag and remove the hose cap from the connector. NOTE: The FaST PAK Floor Cleaning Concentrate is specially designed for use with the FaST system scrubbing application. NEVER use a substitute. Other cleaning solutions may cause FaST system failure. 6. Insert the new FaST PAK approximately half way into the FaST PAK compartment. 7. Connect the FaST PAK hose connector to the FaST supply hose connector, slide the FaST PAK the rest of the way into the FaST PAK compartment, and close the FaST PAK compartment door. 8. When replacing an empty FaST PAK carton, you must scrub with the FaST system for a few minutes before the detergent will reach its maximum foaming. T (9 2013) 9

12 OPERATION FILLING THE SOLUTION TANK machine, stop on level surface, turn off machine, and remove key. The machine is equipped with a fill port at the rear of the machine. MACHINE OPERATION PRE OPERATION CHECKLIST Check the machine for fluid leaks. Check the battery fluid and charge level. Check the tank cover seals for damage and wear. Clean the vacuum fan inlet filter. Check the condition of the scrubbing brushes. Remove any string, banding, plastic wrap, or other debris wrapped around them. Cylindrical brushes: Check that the debris tray is empty and clean. WARNING: Flammable materials can cause an explosion or fire. Do not use flammable materials in tank(s). FOR CONVENTIONAL SCRUBBING: Open the solution tank fill port and partially fill it with water (not to exceed 60 C). Pour the required amount of detergent into the solution tank according to mixing instructions on the bottle. Then continue filling the solution tank with warm water until the water level is just below the fill port. FOR SAFETY: When using machine, follow mixing and handling instructions on chemical containers. FOR FaST or ec H2O SCRUBBING: Use cool clean water only (less than 21 C). Do not add any conventional floor cleaning detergents, system failure may result. NOTE: When filling the solution tank with a bucket, make sure that the bucket is clean. Do not use the same bucket for filling and draining the machine. ATTENTION: For Conventional Scrubbing, only use recommended cleaning detergents. Machine damage due to improper detergent usage will void the manufacturer s warranty. Check the squeegees for damage, wear and for deflection adjustment. Check the vacuum hose for debris or blockage. Drain and clean the recovery tank. Check the brakes and steering for proper operation. Check the horn, headlights, taillights, safety lights, and backup alarm (if equipped). Check the service records to determine maintenance requirements. FaST Scrubbing: Check the FaST PAK (option) concentrate agent level. Replace carton as needed. See the INSTALLING THE FaST PAK AGENT section of the manual. For FaST or ec H2O Scrubbing: Ensure that all conventional cleaning agents are drained and rinsed from the solution tank. For FaST or ec H2O Scrubbing: Ensure that the solution tank is filled with clear cool water only. BEFORE OPERATING Pick up oversized debris before scrubbing. Pick up pieces of wire, string, twine, etc., that could become wrapped around the scrub brush. Plan the scrubbing in advance. Try to arrange long runs with minimum stopping and starting. Do an entire floor or section at one time. Pre sweep the area to prevent streaking. 10 T (9 2013)

13 OPERATION SETTING SCRUB MODES Before scrubbing, select the type of scrubbing will be used, FaST (option), ec H2O (option) or conventional scrubbing. Then set the preferred brush pressure and solution flow settings. SETTING FaST BUTTON The FaST button enables the FaST system to come on when the One Step Scrub button is on. The light next to the button will come on when it is in this mode. NOTE: The solution flow cannot be adjusted when the machine is in the FaST mode. SETTING BRUSH PRESSURE Under normal conditions, the brush pressure should be set to the minimum setting (the bottom light). Under heavy grime conditions, the brush pressure should be set to the maximum setting (the top light). Travel speed and floor conditions will affect scrubbing performance. With the One Step Scrub button on, press either the Brush Pressure increase button (+) or the Brush Pressure decrease button ( ) to set the scrubbing pressure for the surface being cleaned. The new pressure setting will default to this setting when the machine is powered on or off. SETTING ec H2O BUTTON The ec H2O button enables the ec H2O system to come on when the One Step Scrub button is on. The light next to the button will come on when it is in this mode. NOTE: The ec H2O system indicator light will not turn on until the machine starts scrubbing (See page 15). SETTING SOLUTION FLOW (CONVENTIONAL SCRUBBING ONLY) NOTE: The solution flow cannot be adjusted when the machine is set for FaST or ec H2O scrubbing. Under normal soilage conditions the solution flow level should be set to the lowest setting (the bottom light). Under heavy grime conditions, the solution flow level should be set to the higher settings (middle or top lights). Travel speed and floor conditions will affect scrubbing performance. ec H2O System Indicator Light T (03 09) 11

14 OPERATION With the One Step Scrub button on, press either Solution increase button (+) or Solution decrease button ( ) to set the solution flow level for the surface being cleaned. The new solution flow setting will default to this setting when the machine is powered on or off. SCRUBBING FOR SAFETY: Do not operate machine, unless operator manual is read and understood. 1. Turn the On/Off key switch on. 2. Turn on lights (if equipped). 3. Select the preferred scrubbing settings (See SETTING SCRUB MODES). ECONOMY SETTING The machine will operate for a longer time if the Brush Pressure and Solution Flow settings are in the Economy setting. The bottom lights of the Brush Pressure and Solution Flow settings are on when the machine is in the Economy setting. 4. Press the One Step Scrub button. The light on the button is illuminated. All the preset scrubbing functions will turn on. NOTE: Open the control panel cover to adjust the Brush Pressure and Solution Flow Setting while scrubbing if necessary. NOTE: DO NOT turn the ec H2O/FaST system on during conventional scrubbing. Conventional cleaning detergents/restorers may cause failure to the FaST/ec H2O solution system. Drain, rinse and refill solution tank with cool clean water before operating the FaST/ec H2O system. 12 T (03 09)

15 OPERATION 5. Place the directional switch in the direction the machine is to be moved (forward or reverse). NOTE: The machine can scrub in both forward or reverse. The horn will sound when in reverse. 7. Release the propel pedal to stop the machine. Scrubbing functions stop and the automatic park brake will engage when the machine stops. 8. The Brake pedal can be used to control the machine if quicker stopping is needed or if operating on an incline. Do not operate machine on inclines exceeding 7% when scrubbing. FOR SAFETY: When using machine, go slowly on inclines and slippery surfaces. NOTE: The squeegee automatically raises when the machine is driven backwards. This prevents damaging the squeegee. When the machine is placed in reverse, the vacuum fan will shut off after a short delay. 6. Press the propel pedal to begin scrubbing. WARNING: Flammable materials or reactive metals can cause an explosion or fire. Do not pick up. 9. Press the One Step Scrub button to stop scrubbing. The light next to the One Step Scrub button will turn off and the scrubbing functions will turn off after a short delay. T (9 2013) 13

16 OPERATION DOUBLE SCRUBBING For heavily soiled areas, use the double scrubbing method. Double scrubbing can be performed using the FaST SCRUBBING SYSTEM (option), ec H2O SCRUBBING SYSTEM (option) or CONVENTIONAL SCRUBBING methods. Place the side squeegees back on to the machine before scrubbing the floor the second time. NOTE: It is easier to put the side squeegees back on to the machine with the scrub head partially lowered. This allows clearance to install the pins. Disk brushes: Before double scrubbing, remove the side squeegees to keep them from channeling water while double scrubbing. To remove the side squeegees, lower the scrub head, then pull the pins on the front and rear ends of the squeegees. If the machine is equipped with the accessory basket, you may hang the side squeegees from the hooks. Press the vacuum fan button again to lower the squeegee and to turn on the vacuum fan. The light above the vacuum fan button will come on. Then scrub the floor a second time picking up the cleaning solution. WARNING: Flammable materials or reactive metals can cause an explosion or fire. Do not pick up. To double scrub, press the One Step Scrub button, then the vacuum fan button. The light above the vacuum fan button will turn off, the squeegee will raise and the vacuum fan will stop operating. Then scrub the area. Let the cleaning solution set on the floor for 3 5 minutes. 14 T (9 2013)

17 OPERATION WATER PICKUP MODE (NO SCRUBBING) The machine can be used to pick up water or non flammable liquid spills without scrubbing. To pick up water or non flammable liquid spills, check to make sure that the One Step Scrub button is not activated. The light next to the One Step Scrub button must be off. Adjust the machine speed, brush pressure, and solution flow as required when scrubbing. Use the minimal brush pressure and solution flow settings as possible. Keep the machine moving to prevent damaging floor finishes. If poor scrubbing performance is observed, stop scrubbing and refer to MACHINE TROUBLESHOOTING. Conventional Scrubbing: Pour a recommended foam control solution into the recovery tank if excessive foam appears. ec H2O SCRUBBING: If an alarm sounds and the ec H2O system indicator light begins to blink red, the ec H2O module must be flushed to resume ec H2O operation (See ec H2O MODULE FLUSH PROCEDURE on page 34) WARNING: Flammable materials or reactive metals can cause an explosion or fire. Do not pick up. Then press the vacuum fan button. The light above the vacuum fan button will turn on, the squeegee will lower and the vacuum fan will start operating. Then pick up the water or non flammable liquid spill. NOTE: When the alarm sounds and the light blinks red, the machine will bypass the ec H2O system. To continue scrubbing, turn the ec H2O switch off and change over to conventional scrubbing. Change or rotate pads as necessary. Observe the battery discharge indicator to ensure there is adequate charge for machine operation. Observe the solution tank indicator to ensure the solution tank is not empty. Always empty recovery tank before refilling the solution tank. Observe the recovery tank indicator to ensure the recovery is not full. Remove the key when leaving the machine unattended. Perform the Daily Maintenance Procedures after scrubbing (see MACHINE MAINTENANCE). WHILE OPERATING THE MACHINE Drive as straight a path as possible. Avoid bumping into posts or scraping the sides of the machine. Overlap the scrub paths by several centimeters (a few inches). Avoid turning the steering wheel too sharply when the machine is in motion. The machine is very responsive to the movement of the steering wheel. Avoid sudden turns, except in emergencies. When scrubbing dead end aisles, start at the closed end of the aisle and scrub out towards the opening. T (9 2013) Drive the machine slowly on inclines. Use the brake pedal to control machine speed on descending inclines. Scrub with the machine up inclines rather than down inclines. FOR SAFETY: When using machine, go slowly on inclines and slippery surfaces. Do not operate machine in areas where the ambient temperature is above 43 C (110 F). Do not operate scrubbing functions in areas where the ambient temperature is below freezing 0 C (32 F). The maximum rated incline for scrubbing with the machine is 7%. The maximum rated incline during transport of the machine is 19.25%. 15

18 OPERATION EMERGENCY STOP BUTTON The Emergency Stop Button halts all power to the machine in case of an emergency. Press the button to halt the machine power. To restart the machine, turn the Emergency Stop Button to the right. Then turn the on/off switch to the off position and then to the on position. NOTE: This button should not be used for normal stopping as premature wear to the parking brake may occur. ec H2O SYSTEM INDICATOR LIGHT The ec H2O system indicator light will not turn on until the machine starts scrubbing. ec H2O SYSTEM INDICATOR LIGHT CODE Solid green Blinking red Solid red CONDITION Normal operation Flush ec H2O module Contact Service Center HOUR METER The hour meter records the number of hours the machine has been powered on. This information is useful for servicing the machine. It is located under the seat. ec H2O SCRUBBING: If an alarm sounds and the ec H2O system indicator light begins to blink red, the ec H2O module must be flushed to resume ec H2O operation (See ec H2O MODULE FLUSH PROCEDURE on page 34) NOTE: When the alarm sounds and the light blinks red, the machine will bypass the ec H2O system. To continue scrubbing, turn the ec H2O switch off and change over to conventional scrubbing. 16 T (03 09)

19 OPERATION SOLUTION TANK EMPTY INDICATOR The solution tank empty indicator comes on when the solution tank is empty. When this happens, the scrub functions are disabled. If necessary, press the ONE STEP Scrub button for an additional minute of operation to pick up standing water or solution. BATTERY DISCHARGE INDICATOR The battery discharge indicator shows the charge level of the batteries. When the batteries are fully charged, all five lights are lit. As the batteries discharge, the lights go out until only the left light is blinking. RECOVERY TANK FULL INDICATOR The recovery tank full indicator comes on when the recovery tank is full. When this happens, the scrub functions are disabled. If necessary, press the ONE STEP Scrub button for an additional minute of operation to pick up standing water or solution. When the left light blinks, the scrubbing functions will shut off to alert the operator of the battery condition. The machine will still propel when the light is blinking. Recharge the batteries when the light blinks. If necessary, press the ONE STEP Scrub button for an additional minute of operation to pick up standing water or solution. NOTE: Do not charge batteries more often than necessary. Excessive charging could reduce the life of the batteries. It is best to charge the batteries only when the left light indicates that the battery needs charging. See BATTERIES in the MAINTENANCE section. NOTE: The blinking left battery discharge light will not reset from blinking until the batteries are fully charged. T (03 09) 17

20 OPERATION FAULT INDICATOR The fault indicator light (shown in upper right) comes on when there a fault is detected in the propelling motor, vacuum fan motor, or brush motors. Refer to the table below to determine the cause for the fault or failure. Indicator(s) Cause(s) Remedy Fault Light blinks Propel motor is overloaded Contact Tennant service representative Fault Light and top Brush Pressure Light both blink Fault Light and bottom Brush Pressure Light both blink Fault Light and Vacuum Fan Light both blink The right or rear Brush Motor is overloaded (possibly from string or banding wrapped around motor) The left or front Brush Motor is overloaded (possibly from string or banding wrapped around motor) Vacuum Fan Motor is overloaded Remove string / banding from motor or Contact Tennant service representative Remove string / banding from motor or Contact Tennant service representative Contact Tennant service representative 18 T (03 09)

21 OPERATION CIRCUIT BREAKERS Circuit breakers are resettable electrical circuit protection devices that stop the flow of current in the event of a circuit overload. Once a circuit breaker is tripped, allow breaker to cool and then press the reset button to manually reset the breaker. FUSES The fuse is a one-time protection device designed to stop the flow of current in the event of a circuit overload. The 100 A fuse is located inside the battery compartment near the hour meter. It protects the propel circuit. NOTE: Always replace the fuse with a fuse of the same amperage. If the overload that caused the circuit breaker to trip is still there, the circuit breaker will continue to stop current flow until the problem is corrected. The circuit breakers are located inside the battery compartment next to the hour meter. HAZARD LIGHT SWITCH (OPTION) The Hazard Light Switch operates the optional hazard light. The chart shows the circuit breakers and the electrical components they protect. Circuit Breaker Rating Circuit Protected CB1 5 A Instrument Panel power CB2 15 A Accessories T (9 06) 19

22 OPERATION DRAINING AND CLEANING THE TANKS When cleaning is finished, or when the recovery tank full indicator comes on, the recovery tank should be drained and cleaned. The solution tank then can be filled again for additional cleaning. 1. Drive the machine to a solution disposal drain. 2. Turn the machine ON/OFF key switch off. 5. Lift the recovery tank cover. Flush the inside of the recovery tank with clean water. WARNING: Flammable materials can cause an explosion or fire. Do not use flammable materials in tank(s). NOTE: DO NOT use steam to clean tanks. Excessive heat can damage tanks and components. machine, stop on level surface, turn off machine, and remove key. 3. Tilt the operator seat forward and hook the seat latch into place to hold up the seat. 6. Rinse the float sensor located inside the recovery tank. 4. Remove the recovery tank drain hose. While holding the hose up, remove the plug, then slowly lower the drain hose to the floor drain or sink. 7. Replace the recovery tank drain hose cap and mount the drain hose back onto the mounting clip after the tank is drained. 20 T (9 2013)

23 OPERATION 8. Remove and clean the vacuum fan filter. Clean the filter with a damp cloth or low pressure water hose if dirty. Allow the vacuum fan filter to dry completely before reinstalling it in the machine. 12. Flush the solution tank and rinse the float sensor located inside the back part of the solution tank. Rinse the screen filter on the bottom of the tank. 9. Close the recovery tank cover. 13. Carefully push the recovery tank forward to close the solution tank. 10. Remove the solution tank drain hose. While holding the hose up, remove the plug, then slowly lower the drain hose to the floor drain or sink. 14. Unhook the seat latch and lower the operator seat. 11. Tilt the recovery tank back to access the solution tank. Make sure the recovery tank is empty before tilting. 15. Clean the front of the solution tank through the front access port located under the front solution tank cover. Wipe the bottom of the cover and the tank seal before replacing the cover. T (9 2013) 21

24 OPERATION 16. Cylindrical scrub head: Remove and clean the debris tray. Place the tray back in the scrub head when finished. 17. Replace the solution tank drain hose cap and mount the drain hose back onto the mounting clip after after the tank is drained. PROPEL SYSTEM TROUBLESHOOTING The audio alarm (horn) will sound and/or warning lights will come on when a propelling system fault or failure is detected. The machine will stop propelling when this happens. Refer to the table below to determine the cause for the fault or failure. Indicator(s) Cause(s) Remedy Horn repeatedly Propel pedal depressed without Sit in seat when operating machine beeps 2 times operator in seat Horn repeatedly beeps 4 times ON/OFF key switch is turned on while propel pedal is engaged Release the propel pedal before turning key on Horn repeatedly beeps 5 times Failure in the Throttle system has occurred Contact Tennant service representative Horn repeatedly beeps 6 times Failure in the Brake system has occurred Contact Tennant service representative Horn repeatedly beeps 7 times Failure in the Parking Brake system has occurred Contact Tennant service representative Horn repeatedly Emergency Stop Button is engaged Reset Emergency Stop Button beeps 8 times Horn repeatedly beeps 9 times ON/OFF key switch is turned on while battery charger is plugged into Unplug battery charger before starting machine machine Fault Light blinks Propel motor is overloaded Contact Tennant service representative 22 T (9 2013)

25 OPERATION MACHINE TROUBLESHOOTING Problem Cause Remedy Trailing water poor or no Vacuum fan turned off Turn vacuum fan on water pickup Worn squeegee blades Rotate or replace squeegee blades Squeegee out of adjustment Adjust squeegee Vacuum hose clogged Flush vacuum hoses Vacuum fan filter dirty Clean vacuum fan filter Vacuum fan cover seals worn Replace seals Debris caught on squeegee Remove debris Vacuum hose to squeegee or recovery tank disconnected or damaged Reconnect or replace vacuum hose Recovery tank cover not completely closed Check for obstructions and close cover Vacuum fan will not turn on Vacuum fan switch turned off Turn vacuum switch on Recovery tank full Drain recovery tank Foam filling recovery tank Empty recovery tank Use less detergent Recovery tank sensor dirty or stuck Clean or replace sensor Little or no solution flow to Solution tank empty Fill solution tank the floor (Conventional Solution flow turned off Turn solution flow on Scrubbing Mode) Solution supply lines plugged Flush solution supply lines Clogged solution tank filter Drain solution tank. remove solution tank filter, clean and reinstall Poor scrubbing performance One Step Scrub button not on Turn One Step Scrub button on Improper detergent or brushes used Recovery tank full Solution tank empty Debris caught on scrub brushes or pads Worn scrub brush Broken or loose brush drive belt (Cylindrical models) Brush pressure set too light Low battery charge Contact Tennant service representative Empty recovery tank Fill solution tank Remove debris Replace scrub brush Replace or tighten belt Increase brush pressure Charge batteries until the charger automatically turns off T (03 09) 23

26 OPERATION Problem Cause Remedy FaST System does not FaST switch is turned off Turn on the FaST switch operate Accessory circuit breaker tripped Reset circuit breaker ec H2O Model: ec H2O system indicator light blinking red ec H2O Model: Alarm sounds ec H2O Model: ec H2O system indicator light solid red ec H2O Model: ec H2O system indicator light does not turn on ec H2O Model: No water flow Clogged FaST PAK supply hose and/or connector FaST PAK carton is empty or not connected FaST system is not primed Clogged solution tank filter Clogged detergent injector Faulty solution pump Mineral deposit build up in module Defective module Defective light or module Clogged module Defective solution pump Soak connector and hose in warm water and clean Replace FaST PAK carton and/or connect supply hose To prime, operate the FaST solution system for a few minutes Drain solution tank. remove solution tank filter, clean and reinstall See FaST SYSTEM MAINTENANCE Replace solution pump Flush module (See ec H2O MODULE FLUSH PROCEDURE on page 36) Contact Service Center Contact Service Center Contact Service Center Replace solution pump 24 T (03 09)

27 MAINTENANCE 9 MAINTENANCE T (03 09) 25

28 MAINTENANCE MAINTENANCE CHART The table below indicates the Person Responsible for each procedure. O = Operator. T = Trained Personnel. Interval Person Resp. Key Description Procedure Daily O 1 Side and rear squeegees Check for damage and wear Check deflection and leveling O 2 Scrub brushes / pads Check for damage, wear, debris O 8 Recovery tank Clean tank, screen filter, and float sensor Lubricant/ Fluid No. of Service Points O 9 Vacuum fan filter Clean 1 O 7 FaST PAK supply hose Clean and connect hose to 1 and connector (option) storing plug when not in use O 12 Debris tray Clean 1 (Cylindrical brushes) Weekly T 4 Battery cells Check electrolyte level DW Hours 100 Hours 200 Hours 500 Hours 1000 Hours LUBRICANT/FLUID O 11 Disk scrub head floor skirt Check for damage and wear O 13 Cylindrical brushes Check taper and rotate front to rear T 3 Vacuum Fan and tank seals T 14 Cylindrical brush drive belts T 4 Battery terminals and cables 2 2 Check for damage and 3 wear Check tension 2 Check and clean 12 T 9 Vacuum fan motor(s) Check motor brushes 1 (Check every 100 hours after initial 500 hour check) T 5 Scrub brush motors Check motor brushes 2 (Check every 100 hours after initial 500 hour check) T 6 Propelling motor Check motor brushes 1 (Check every 100 hours after initial 500 hour check) T 10 Tires Check for damage and wear 3 T 15 FaST water and air filters Replace 1 (option) DW... Distilled water NOTE: More frequent maintenance intervals may be required in extremely dusty conditions. 26 T (9 2013)

29 MAINTENANCE BATTERIES machine, stop on level surface, turn off machine, and remove key. The lifetime of the batteries is limited to the number of charges the batteries receive. To get the most life from the batteries, only recharge the batteries when the battery discharge indicator is down to the last bar. It s also important to maintain the proper electrolyte levels during the life of the battery. CHECKING CONNECTIONS / CLEANING After every 200 hours of use check for loose battery connections and clean the surface of the batteries, including terminals and cable clamps, with a strong solution of baking soda and water. Replace any worn or damaged wires. Do not remove battery caps when cleaning batteries. CHECKING THE ELECTROLYTE LEVEL (WET / LEAD ACID BATTERIES ONLY) NOTE: Do Not check the electrolyte level if the machine is equipped with the battery watering system. Proceed to HYDROLINK BATTERY WATERING SYSTEM (OPTION). Check the battery electrolyte level weekly for machines equipped with wet/lead acid batteries. Objects made of metal can potentially short circuit the batteries. Keep all metallic objects off the batteries. GEL BATTERIES Gel batteries do not require any maintenance other than routine charging FOR SAFETY: When servicing machine, avoid contact with battery acid. The level should be slightly above the battery plates as shown before charging. Add distilled water if low. DO NOT OVERFILL. The electrolyte will expand and may overflow when charging. Before Charging After Charging NOTE: Make sure the battery caps are in place while charging. T (9 2013) 27

30 MAINTENANCE CHARGING THE BATTERIES WITH OFF BOARD CHARGER IMPORTANT: Before charging, make sure that the charger setting is properly set for the battery type. 1. Drive the machine to a flat, dry surface. 5. Plug the battery charger into the wall outlet. NOTE: If the red ABNORMAL CYCLE lamp lights when the TENNANT charger is plugged into a wall outlet, the charger cannot charge the battery and there is something wrong with the battery. NOTE: Make sure the area is well ventilated. 2. Turn the machine ON/OFF key switch off. machine, stop on level surface, turn off machine, and remove key. 3. Tilt the operator seat forward and hook the seat latch into place to hold up the seat The TENNANT charger will start automatically. When the batteries are fully charged, the TENNANT charger will automatically turn off. NOTE: Do not disconnect he charger s DC cord from the machine s battery charging connector when the charger is operating. Arcing may result. If the charger must be interrupted during charging, disconnect the AC power supply cord first. NOTE: Make sure the batteries have the proper electrolyte level before charging. See CHECKING THE ELECTROLYTE LEVEL. 4. Plug the charger connector into the machine battery charging connector. 7. After the charger has turned off, unplug the charger from the machine battery charging connector. 8. Unhook the seat latch and lower the operator seat. WARNING: Batteries emit hydrogen gas. Explosion or fire can result. Keep sparks and open flame away. Keep covers open when charging. 28 T (9 2013)

31 MAINTENANCE ELECTRIC MOTORS machine, stop on level surface, turn off machine, and remove key. The carbon brushes on the vacuum fan motor, the propelling motor, and the scrub brush motors should be inspected after the initial 500 hours of machine operation and then every 100 hours after the initial 500 hours. BELTS (Cylindrical Models) machine, stop on level surface, turn off machine, and remove key. The two brush drive belts are located on the cylindrical brush scrub head. The belts drive the cylindrical brushes. Proper belt tension is a 6 mm deflection from a force of 2.3 to 2.5 kg at the belt midpoint. Check and adjust the belt tension every 100 hours of operation. T (9 2013) 29

32 MAINTENANCE SCRUB BRUSHES AND PADS The machine can be equipped with either disk or cylindrical scrub brushes, or cleaning pads. Check scrub brushes daily for wire or string tangled around the brush or brush drive hub. Also check brushes for damage and wear. DISK BRUSHES The scrub brushes should be replaced if a large number of bristles are missing or if bristle length is less than 10 mm. REPLACING DISK BRUSHES OR PAD DRIVER 1. Stop machine on a level surface. Make sure the scrub head is in the raised position. 2. Turn the machine ON/OFF key switch off. machine, stop on level surface, turn off machine, and remove key. 3. Pull the pin from the side squeegee retainer pivot. Cleaning pads must be placed on pad drives before they are ready to use. The cleaning pad is held in place by a pad holder. Cleaning pads need to be cleaned immediately after use with soap and water. Do not wash the pads with a pressure washer. Hang pads, or lie pads flat to dry. NOTE: Always replace brushes and pads in sets. Otherwise one brush or pad will be more aggressive than the other. 4. Open the side squeegee retainer pivot toward the front of the machine, then pull the side squeegee toward the rear of the machine to access the scrub brushes or pads. 30 T (9 2013)

33 MAINTENANCE 5. Pull the scrub brush/pad driver downward to remove it from the drive hub. REPLACING DISK PADS 1. Remove the pad driver from the machine. 2. Squeeze the spring clip together to remove the center disk. 6. Place the new scrub brush/pad driver onto the drive hub. Ensure that it is securely mounted onto the brush drive hub. 3. Flip or replace the scrub pad, center the scrub pad on the pad driver. Then reinstall the center disk to secure the pad in place on the pad driver. 7. Close the side squeegee and the retainer pivot, then insert the pin. NOTE: Be sure the pin is inserted completely through the bottom. 4. Reinsert the pad driver into the machine. T (9 2013) 31

34 MAINTENANCE CYLINDRICAL BRUSHES Check the brush taper and rotate the brushes from front-to-rear every 50 hours of machine operation for maximum brush life and best scrubbing performance. 4. Remove idler plate from the scrub head by pressing the spring tab downward. The cylindrical brushes should be replaced if large amounts of bristles are missing, or if the remaining bristle length is less than 15 mm. NOTE: Replace worn brushes in pairs. Scrubbing with brushes of unequal bristle length will result in diminished scrubbing performance. REPLACING OR ROTATING CYLINDRICAL BRUSHES 1. Stop machine on a level surface. Make sure the scrub head is in the raised position. 2. Turn the machine ON/OFF key switch off. machine, stop on level surface, turn off machine, and remove key. 5. Pull the old brush out of the scrub head. 6. Attach the idler plate to the new or rotated brush on the end that has the double row of bristles. Install the brush. 3. Remove the cotter pin that holds the side squeegee in place. Swing the squeegee away from the scrub head. 7. Push down on the door to catch the door in the scrub head, then pull up on the door to latch it into the spring. 8. Repeat for the other brush on the other side of the scrub head NOTE: Each side of the scrub head is stamped with a letter. The idler door of that side of the scrub head is stamped with the same letter. Make sure the letter on the door matches the letter on the scrub head when replacing the doors. 32 T (9 2013)

35 MAINTENANCE CHECKING CYLINDRICAL BRUSH PATTERN 1. Apply chalk, or a similar marking material, to a smooth and level section of the floor. 8. If the width of the brushes is not the same, see ADJUSTING CYLINDRICAL BRUSH WIDTH section of this manual. NOTE: If chalk or other material is not available, allow the brush to spin on the floor for two minutes. A polish mark will remain on the floor. 2. Raise the scrub head, then position the brushes over the chalked area. 3. Block the front or rear wheels to prevent the machine from moving. 4. Lower the scrub head in the chalked area and slowly press the propel pedal until the scrub brushes start spinning. Allow the machine to scrub in the same place for 15 to 20 seconds. 5. Raise the scrub head and drive the machine away from the chalked area. machine, stop on level surface, turn off machine, and remove key. 6. Observe the brush patterns. If the brush pattern is the same width across the entire length of each brush and both brushes are the same width, no adjustment is necessary. ADJUSTING CYLINDRICAL BRUSH TAPER Stop machine on a level surface. Make sure the scrub head is in the raised position. 2. Turn the machine ON/OFF key switch off. machine, stop on level surface, turn off machine, and remove key. 3. Remove the cotter pin that holds the side squeegee in place. Swing the squeegee away from the scrub head If the brush patterns are tapered, see ADJUSTING CYLINDRICAL BRUSH TAPER section of this manual T (9 2013) 33

36 MAINTENANCE 4. Remove idler plate from the scrub head by pressing the spring tab downward. ADJUSTING CYLINDRICAL BRUSH WIDTH 1. Stop machine on a level surface. Make sure the scrub head is in the lowered position. 2. Turn the machine ON/OFF key switch off. machine, stop on level surface, turn off machine, and remove key. 3. Loosen the two scrub head mounting screws. 5. While holding the flat end of the idler shaft with a wrench, loosen the mounting screw on the outside of the idler door. 4. Loosen the jam nut, then adjust the brush width adjustment screw. Tighten the jam nut and the two scrub head mounting screws when finished. 6. Turn the idler shaft to raise or lower the end of the brush as needed to straighten the brush pattern. Tighten the mounting screw. 5. Check the brush patterns again and readjust as necessary until both brush patterns are the same. 7. Check the brush patterns again and readjust as necessary until both patterns are the same. 34 T (9 2013)

37 MAINTENANCE FaST SYSTEM MAINTENANCE (FaST Model) machine, stop on level surface, turn off machine, and remove key. Every 1000 hours replace the water filter and air filter located in the FaST detergent injector. Order filter kit p/n FaST SUPPLY HOSE CONNECTOR The FaST supply hose connector is located below the FaST PAK holder. Soak the connector in warm water if detergent buildup is visible. When a FaST PAK carton is not installed, store the supply hose connector on the storing plug to prevent the hose from clogging. 1. To access the detergent injector assembly, lower the scrub head. The injector assembly is located on top of the scrub head. new photo Disk Model Cylindrical Brush Model 2. Remove the injector assembly from the pinch clamps. 3. Replace the water and air filter. An 8mm hex wrench is required to install the new water filter. Air Filter (50 Mesh/Brown) Water Filter (50 Mesh/Brown) T (9 2013) 35

38 MAINTENANCE ec H2O SYSTEM (ec H2O Model) 5. Press and release the ec H2O module flush switch to start the flush cycle. The module is located under the seat ec H2O MODULE FLUSH PROCEDURE This procedure is only required when an alarm sounds and the ec H2O system indicator light begins to blink red. machine, stop on level surface and turn off machine. 1. Drain the solution tank and recovery tank of all water. 2. Pour 8 liters of white or rice vinegar into the solution tank at full strength. Do not dilute. Use the rear fill port when adding vinegar. Do not use the front fill port. (p/n Vinegar,10 ltrs). NOTE: Use white or rice vinegar only. The acidity level should be between 4 8%. Do not use other acids for this procedure. NOTE: The module will automatically shut off when the flush cycle is complete (approx. 7 minutes). The module must run the full 7 minute cycle in order to reset the system indicator light and alarm. 6. After the 7 minute flush cycle, drain, rinse and fill solution tank with clean water. Then press the flush switch again to rinse out any remaining vinegar from module. After 1 2 minutes, press the flush switch to turn off the module. Repeat flush procedure if the ec H2O module does not reset. If module fails to reset, contact an Authorized Service Center. SQUEEGEE BLADES 3. Disconnect the black connector fitting at the scrub head and place the hose into a bucket. The side squeegees control water spray and channel water into the path of the rear squeegee. The side squeegee blades are not adjustable. The rear squeegee assembly channels water into the vacuum fan suction. The front blade channels the water and the rear blade wipes the floor. Check the squeegee blades daily for damage and wear. Rotate or replace the squeegee blades if the leading edge is torn or worn half-way through the thickness of the blade. Replace the side squeegee deflectors if they become worn. The rear squeegee can be adjusted for leveling and deflection. The deflection and leveling of the squeegee blades should be checked daily, or when scrubbing a different type of floor. 4. Turn the key to the on position. The rear squeegee assembly can be removed from the squeegee pivot to prevent damage during transport of the machine. 36 T (9 2013)

39 MAINTENANCE REPLACING (OR ROTATING) THE REAR SQUEEGEE BLADES 1. Stop machine on a level surface. Make sure the scrub head is in the raised position. 6. Remove rear squeegee blade from the rear squeegee assembly. 2. Turn the machine ON/OFF key switch off. machine, stop on level surface, turn off machine, and remove key. 3. Remove the squeegee suction hose from the rear squeegee assembly. Then loosen both rear squeegee assembly mounting knobs. 7. Loosen the two outer knobs on the rear squeegee assembly. Remove the front squeegee blade from the squeegee assembly. 4. Pull the rear squeegee assembly from the machine. 5. Loosen the rear squeegee retaining band tension latch and remove the retaining band. 8. Install the new front squeegee blade or rotate the existing blade to the new edge. Be sure the holes in the front squeegee blade are hooked onto the tabs on the front blade clamp. 9. Lightly tighten the two outer knobs. T (9 2013) 37

40 MAINTENANCE 10. Install the new rear squeegee blade or rotate the existing blade to the new edge. Be sure the holes in the squeegee blade are hooked onto the tabs on the squeegee assembly. 13. Reinstall the rear squeegee under the squeegee mount bracket and tighten all four knobs. 11. Reinstall the rear squeegee retaining band onto the squeegee assembly. Be sure each of the flanges on the retaining band are seated in the cut outs in the rear squeegee assembly. 14. Reinstall the squeegee suction hose onto the rear squeegee assembly. REPLACING SIDE SQUEEGEE BLADES 12. Tighten the rear squeegee retaining band tension latch. machine, stop on level surface, turn off machine, and remove key. 1. Open the side squeegee. 2. Pull the old side squeegee blade from the side squeegee retainer. Slide the new blade onto the retainer. 3. Close the side squeegee. 38 T (9 2013)

41 MAINTENANCE ADJUSTING THE SQUEEGEE GUIDE ROLLER machine, stop on level surface, turn off machine, and remove key. The squeegee guide rollers are located on both ends of the rear squeegee. The rollers guide the squeegee blade end along a wall. Loosen the nut located at the top of the guide roller and move the roller in or out to adjust how close the end of the squeegee blade is to the wall. The squeegee blade end should be further away from the wall when the floor curves up into the wall. 4. If the deflection is not the same over the full length of the blade, turn the squeegee leveling bolt to make adjustments. The squeegee leveling bolt is located directly behind the squeegee suction hose. DO NOT disconnect the suction hose from the squeegee frame when leveling squeegee. Turn the squeegee leveling bolt counter-clockwise to increase the deflection at the ends of the squeegee. LEVELING THE REAR SQUEEGEE Leveling of the squeegee assures the entire length of the squeegee is in even contact with the surface being scrubbed. Perform this adjustment on an even and level floor. 1. Lower the squeegee and drive the machine forward a few feet. 2. Turn off the machine ON/OFF key switch. machine, stop on level surface, turn off machine, and remove key. 3. Look at the deflection of the squeegee over the full length of the squeegee blade. Turn the squeegee leveling bolt clockwise to decrease the deflection at the ends of the squeegee blade. 5. Drive the machine forward with the squeegee down to recheck the squeegee blade deflection if adjustments were made. 6. Readjust the squeegee blade deflection if necessary. ADJUSTING REAR SQUEEGEE BLADE DEFLECTION Deflection is the amount of curl the overall squeegee blade has when the machine moves forward. The best deflection is when the squeegee wipes the floor dry with a minimal amount of deflection. 1. Lower the squeegee and drive the machine forward a few meters (feet). 2. Turn off the machine ON/OFF key switch. machine, stop on level surface, turn off machine, and remove key. T (9 2013) 39

42 MAINTENANCE 3. Look at the amount of deflection or curl of the squeegee blade. The correct amount of deflection is 12 mm for scrubbing smooth floors and 15 mm for rough floors. 12 mm If the overall squeegee blade deflection needs to be adjusted, loosen the jam nuts on the squeegee casters and adjust the height. 5. Drive the machine forward again to recheck the squeegee blade deflection after adjustments are made. 6. Readjust the squeegee blade deflection if necessary. 40 T (9 06)

43 MAINTENANCE SKIRTS AND SEALS DISK SCRUB HEAD FLOOR SKIRT machine, stop on level surface, turn off machine, and remove key. The skirt is located in front of the disc brush scrub heads. Check the skirt for damage and wear after every 50 hours of operation. SOLUTION TANK SEALS machine, stop on level surface, turn off machine, and remove key. There are two solution tank seals. Check the seal for damage and wear after every 100 hours of operation. A front seal is located on the bottom of the solution tank cover. A rear seal is located on the bottom of the recovery tank. The skirts should clear the floor by 0 to 6 mm when the scrub brushes are new and the scrub head is down. RECOVERY TANK SEAL machine, stop on level surface, turn off machine, and remove key. The recovery tank seal is located on the bottom of the recovery tank cover. Check the seal for damage and wear after every 100 hours of operation. TIRES machine, stop on level surface, turn off machine, and remove key. The machine has three solid rubber tires: one tire is front and two are in the rear. Check the tires for damage and wear after every 500 hours of operation. T (9 2013) 41

44 MAINTENANCE PUSHING, TOWING, AND TRANSPORTING THE MACHINE PUSHING OR TOWING THE MACHINE If the machine becomes disabled, it can be pushed from the front or rear, but only tow it from the front. FOR SAFETY: When servicing machine, do not push or tow the machine on inclines with the brake disabled. Before attempting to push or tow the machine, disengage the brake as described below. To disengage the brake, insert the tip of a small screw driver between the electronic brake lever and the hub. TRANSPORTING THE MACHINE When transporting the machine by trailer or truck, be certain to follow the tie down procedure below: 1. Raise the squeegee and scrub head. FOR SAFETY: When loading/unloading machine onto/off truck or trailer, drain tanks before loading machine. 2. Load the machine using a ramp that can support the machine weight and operator. Do not operate the machine on a ramp incline that exceeds a 19.25% angle. FOR SAFETY: When transporting machine, use a recommended ramp when loading/ unloading into/off truck or trailer. 3. Position the front of machine against the front of the trailer or truck. 4. Lower the scrub head and squeegee after the machine is positioned on the trailer or truck. 5. Place a block behind each wheel to prevent the machine from rolling. 6. Route the front tie down straps through the stabilizer arms and then secure the tie downs to the trailer or truck to prevent the machine from tipping. For models manufactured before serial number 00681, the propel motor harness connector must also be disconnected. NOTE: It may be necessary to install tie-down brackets to the floor of the trailer or truck. Only push or tow the machine on a level surface. Do not exceed 3.2 kp/h. It is NOT intended to be pushed or towed at a high speed. Immediately after pushing or towing the machine, remove the screw driver to enable the parking brake. FOR SAFETY: When transporting machine, use tie down straps to secure machine to truck or trailer. 7. Route the rear tie down straps through the opening at the center part of the rear axle. FOR SAFETY: Do not operate machine with the brake disabled. 42 T (9 2013)

45 MAINTENANCE MACHINE JACKING machine, stop on level surface, turn off machine, and remove key. Empty the recovery and solution tanks before jacking the machine. Jack up the machine for service at the designated locations. Use a hoist or jack capable of supporting the weight of the machine. Always stop the machine on a flat, level surface and block the tires before jacking up the machine. Front jacking locations are located on both sides of the machine. FREEZE PROTECTION machine, stop on level surface and turn off machine. 1. Drain the solution tank and recovery tank of all water. 2. Pour 8 liters of Propylene Glycol Based / Recreational Vehicle (RV) antifreeze into the solution tank at full strength. Do not dilute. 3. FaST models: Remove the FaST PAK and store in temperatures above freezing. FOR SAFETY: Avoid eye contact with antifreeze. Wear safety glasses. 4. Turn the machine power on and operate the solution flow system. Turn the machine off when the antifreeze appears at the scrub head. Continue with the freeze protection procedure if machine is equipped with the ec H2O system. ec H2O Model: Rear jacking locations are located on both sides of the machine at the axles. 5. Press and release the flush switch on the ec H2O module to cycle the antifreeze through ec H2O system. When the antifreeze appears at the scrub head, press the switch again to turn off the module. FOR SAFETY: When servicing machine, block machine tires before jacking machine up. Use a hoist or jack that will support the weight of the machine. Jack machine up at designated locations only. Block machine up with jack stands. STORAGE INFORMATION The following steps should be taken when storing the machine for extended periods of time. 1. Drain and clean the solution and recovery tanks. Open the recovery tank cover to promote air circulation. 2. Park the machine in a cool, dry area. Do not expose the machine to rain. Store indoors. 3. Remove the batteries, or charge them every three months. IMPORTANT: Before operating machine, the antifreeze must be flushed from the module as described below. If the antifreeze is not properly flushed from the ec H2O system, the ec H2O module may detect an error and not function (ec H2O switch indicator light will turn red). If this occurs, reset key and repeat the flush procedure as described below. T (9 2013) 43